Very similar to this guy named Tom Shadyac, he directed Bruce Almighty and Liar Liar among other films and living the lifestyle of the rich and famous. After suffering an accident he looked in the mirror and decided what is life about? A question for the ages you could say, he then sold his 17,000 foot LA mansion, gave away most of his fortune and is currently living in a trailer park.

He has a documentary movie called I Am about his personal addiction to materialism.

Very similar, i watched him tell this story on Tavis Smiley, its going to make him a better filmmaker.